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S390: Optimize strcat and wcscat.
This patch provides optimized versions of strcat and wcscat with the z13 vector instructions. ChangeLog: * sysdeps/s390/multiarch/strcat-c.c: New File. * sysdeps/s390/multiarch/strcat-vx.S: Likewise. * sysdeps/s390/multiarch/strcat.c: Likewise. * sysdeps/s390/multiarch/wcscat-c.c: Likewise. * sysdeps/s390/multiarch/wcscat-vx.S: Likewise. * sysdeps/s390/multiarch/wcscat.c: Likewise. * sysdeps/s390/multiarch/Makefile (sysdep_routines): Add strcat and wcscat functions. * sysdeps/s390/multiarch/ifunc-impl-list.c (__libc_ifunc_impl_list): Add ifunc test for strcat, wcscat. * string/strcat.c (STRCAT): Define and use macro. * wcsmbs/wcscat.c: Use WCSCAT if defined. * string/test-strcat.c: Add wcscat support. * wcsmbs/test-wcscat.c: New File. * wcsmbs/Makefile (strop-tests): Add wcscat. * benchtests/bench-strcat.c: Add wcscat support. * benchtests/bench-wcscat.c: New File. * benchtests/Makefile (wcsmbs-bench): Add wcscat.
This commit is contained in:
Stefan Liebler
Andreas Krebbel
parent
b3a0c176d1
commit
d626a24f23
21
ChangeLog
21
ChangeLog
@ -1,3 +1,24 @@
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2015-08-26 Stefan Liebler <stli@linux.vnet.ibm.com>
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* sysdeps/s390/multiarch/strcat-c.c: New File.
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* sysdeps/s390/multiarch/strcat-vx.S: Likewise.
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* sysdeps/s390/multiarch/strcat.c: Likewise.
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* sysdeps/s390/multiarch/wcscat-c.c: Likewise.
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* sysdeps/s390/multiarch/wcscat-vx.S: Likewise.
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* sysdeps/s390/multiarch/wcscat.c: Likewise.
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* sysdeps/s390/multiarch/Makefile (sysdep_routines): Add strcat and
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wcscat functions.
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* sysdeps/s390/multiarch/ifunc-impl-list.c
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(__libc_ifunc_impl_list): Add ifunc test for strcat, wcscat.
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* string/strcat.c (STRCAT): Define and use macro.
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* wcsmbs/wcscat.c: Use WCSCAT if defined.
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* string/test-strcat.c: Add wcscat support.
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* wcsmbs/test-wcscat.c: New File.
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* wcsmbs/Makefile (strop-tests): Add wcscat.
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* benchtests/bench-strcat.c: Add wcscat support.
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* benchtests/bench-wcscat.c: New File.
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* benchtests/Makefile (wcsmbs-bench): Add wcscat.
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2015-08-26 Stefan Liebler <stli@linux.vnet.ibm.com>
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* sysdeps/s390/multiarch/stpncpy-c.c: New File.
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@ -36,7 +36,7 @@ string-bench := bcopy bzero memccpy memchr memcmp memcpy memmem memmove \
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strncasecmp strncat strncmp strncpy strnlen strpbrk strrchr \
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strspn strstr strcpy_chk stpcpy_chk memrchr strsep strtok \
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strcoll
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wcsmbs-bench := wcslen wcsnlen wcscpy wcpcpy wcsncpy wcpncpy
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wcsmbs-bench := wcslen wcsnlen wcscpy wcpcpy wcsncpy wcpncpy wcscat
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string-bench-all := $(string-bench) ${wcsmbs-bench}
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# We have to generate locales
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@ -17,19 +17,45 @@
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<http://www.gnu.org/licenses/>. */
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#define TEST_MAIN
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#define TEST_NAME "strcat"
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#ifndef WIDE
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# define TEST_NAME "strcat"
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#else
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# define TEST_NAME "wcscat"
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#endif /* WIDE */
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#include "bench-string.h"
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typedef char *(*proto_t) (char *, const char *);
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char *simple_strcat (char *, const char *);
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#ifndef WIDE
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# define STRCAT strcat
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# define CHAR char
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# define sfmt "s"
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# define SIMPLE_STRCAT simple_strcat
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# define STRLEN strlen
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# define STRCMP strcmp
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# define BIG_CHAR CHAR_MAX
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# define SMALL_CHAR 127
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#else
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# include <wchar.h>
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# define STRCAT wcscat
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# define CHAR wchar_t
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# define sfmt "ls"
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# define SIMPLE_STRCAT simple_wcscat
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# define STRLEN wcslen
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# define STRCMP wcscmp
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# define BIG_CHAR WCHAR_MAX
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# define SMALL_CHAR 1273
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#endif /* WIDE */
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IMPL (simple_strcat, 0)
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IMPL (strcat, 1)
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char *
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simple_strcat (char *dst, const char *src)
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typedef CHAR *(*proto_t) (CHAR *, const CHAR *);
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CHAR *SIMPLE_STRCAT (CHAR *, const CHAR *);
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IMPL (SIMPLE_STRCAT, 0)
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IMPL (STRCAT, 1)
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CHAR *
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SIMPLE_STRCAT (CHAR *dst, const CHAR *src)
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{
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char *ret = dst;
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CHAR *ret = dst;
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while (*dst++ != '\0');
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--dst;
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while ((*dst++ = *src++) != '\0');
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@ -37,9 +63,9 @@ simple_strcat (char *dst, const char *src)
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}
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static void
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do_one_test (impl_t *impl, char *dst, const char *src)
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do_one_test (impl_t *impl, CHAR *dst, const CHAR *src)
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{
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size_t k = strlen (dst), i, iters = INNER_LOOP_ITERS;
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size_t k = STRLEN (dst), i, iters = INNER_LOOP_ITERS;
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timing_t start, stop, cur;
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if (CALL (impl, dst, src) != dst)
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@ -50,9 +76,9 @@ do_one_test (impl_t *impl, char *dst, const char *src)
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return;
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}
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if (strcmp (dst + k, src) != 0)
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if (STRCMP (dst + k, src) != 0)
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{
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error (0, 0, "Wrong result in function %s dst \"%s\" src \"%s\"",
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error (0, 0, "Wrong result in function %s dst \"%" sfmt "\" src \"%" sfmt "\"",
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impl->name, dst, src);
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ret = 1;
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return;
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@ -75,18 +101,18 @@ static void
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do_test (size_t align1, size_t align2, size_t len1, size_t len2, int max_char)
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{
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size_t i;
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char *s1, *s2;
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CHAR *s1, *s2;
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align1 &= 7;
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if (align1 + len1 >= page_size)
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if ((align1 + len1) * sizeof (CHAR) >= page_size)
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return;
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align2 &= 7;
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if (align2 + len1 + len2 >= page_size)
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if ((align2 + len1 + len2) * sizeof (CHAR) >= page_size)
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return;
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s1 = (char *) (buf1 + align1);
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s2 = (char *) (buf2 + align2);
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s1 = (CHAR *) (buf1) + align1;
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s2 = (CHAR *) (buf2) + align2;
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for (i = 0; i < len1; ++i)
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s1[i] = 32 + 23 * i % (max_char - 32);
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@ -120,26 +146,26 @@ test_main (void)
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for (i = 0; i < 16; ++i)
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{
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do_test (0, 0, i, i, 127);
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do_test (0, 0, i, i, 255);
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do_test (0, i, i, i, 127);
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do_test (i, 0, i, i, 255);
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do_test (0, 0, i, i, SMALL_CHAR);
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do_test (0, 0, i, i, BIG_CHAR);
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do_test (0, i, i, i, SMALL_CHAR);
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do_test (i, 0, i, i, BIG_CHAR);
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}
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for (i = 1; i < 8; ++i)
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{
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do_test (0, 0, 8 << i, 8 << i, 127);
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do_test (8 - i, 2 * i, 8 << i, 8 << i, 127);
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do_test (0, 0, 8 << i, 2 << i, 127);
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do_test (8 - i, 2 * i, 8 << i, 2 << i, 127);
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do_test (0, 0, 8 << i, 8 << i, SMALL_CHAR);
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do_test (8 - i, 2 * i, 8 << i, 8 << i, SMALL_CHAR);
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do_test (0, 0, 8 << i, 2 << i, SMALL_CHAR);
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do_test (8 - i, 2 * i, 8 << i, 2 << i, SMALL_CHAR);
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}
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for (i = 1; i < 8; ++i)
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{
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do_test (i, 2 * i, 8 << i, 1, 127);
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do_test (2 * i, i, 8 << i, 1, 255);
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do_test (i, i, 8 << i, 10, 127);
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do_test (i, i, 8 << i, 10, 255);
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do_test (i, 2 * i, 8 << i, 1, SMALL_CHAR);
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do_test (2 * i, i, 8 << i, 1, BIG_CHAR);
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do_test (i, i, 8 << i, 10, SMALL_CHAR);
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do_test (i, i, 8 << i, 10, BIG_CHAR);
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}
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return ret;
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20
benchtests/bench-wcscat.c
Normal file
20
benchtests/bench-wcscat.c
Normal file
@ -0,0 +1,20 @@
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/* Measure wcscat functions.
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Copyright (C) 2015 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<http://www.gnu.org/licenses/>. */
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#define WIDE 1
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#include "bench-strcat.c"
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@ -19,9 +19,13 @@
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#undef strcat
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#ifndef STRCAT
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# define STRCAT strcat
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#endif
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/* Append SRC on the end of DEST. */
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char *
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strcat (char *dest, const char *src)
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STRCAT (char *dest, const char *src)
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{
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strcpy (dest + strlen (dest), src);
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return dest;
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@ -1,4 +1,4 @@
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/* Test and measure strcat functions.
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/* Test strcat functions.
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Copyright (C) 1999-2015 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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Written by Jakub Jelinek <jakub@redhat.com>, 1999.
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@ -18,19 +18,52 @@
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<http://www.gnu.org/licenses/>. */
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#define TEST_MAIN
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#define TEST_NAME "strcat"
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#ifndef WIDE
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# define TEST_NAME "strcat"
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#else
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# define TEST_NAME "wcscat"
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#endif /* WIDE */
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#include "test-string.h"
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typedef char *(*proto_t) (char *, const char *);
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char *simple_strcat (char *, const char *);
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#ifndef WIDE
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# define STRCAT strcat
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# define CHAR char
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# define UCHAR unsigned char
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# define sfmt "s"
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# define SIMPLE_STRCAT simple_strcat
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# define STRLEN strlen
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# define STRCMP strcmp
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# define MEMSET memset
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# define MEMCPY memcpy
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# define MEMCMP memcmp
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# define BIG_CHAR CHAR_MAX
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# define SMALL_CHAR 127
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#else
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# include <wchar.h>
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# define STRCAT wcscat
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# define CHAR wchar_t
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# define UCHAR wchar_t
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# define sfmt "ls"
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# define SIMPLE_STRCAT simple_wcscat
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# define STRLEN wcslen
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# define STRCMP wcscmp
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# define MEMSET wmemset
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# define MEMCPY wmemcpy
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# define MEMCMP wmemcmp
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# define BIG_CHAR WCHAR_MAX
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# define SMALL_CHAR 1273
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#endif /* WIDE */
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IMPL (simple_strcat, 0)
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IMPL (strcat, 1)
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typedef CHAR *(*proto_t) (CHAR *, const CHAR *);
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CHAR *SIMPLE_STRCAT (CHAR *, const CHAR *);
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char *
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simple_strcat (char *dst, const char *src)
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IMPL (SIMPLE_STRCAT, 0)
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IMPL (STRCAT, 1)
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CHAR *
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SIMPLE_STRCAT (CHAR *dst, const CHAR *src)
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{
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char *ret = dst;
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CHAR *ret = dst;
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while (*dst++ != '\0');
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--dst;
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while ((*dst++ = *src++) != '\0');
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@ -38,9 +71,9 @@ simple_strcat (char *dst, const char *src)
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}
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static void
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do_one_test (impl_t *impl, char *dst, const char *src)
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do_one_test (impl_t *impl, CHAR *dst, const CHAR *src)
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{
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size_t k = strlen (dst);
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size_t k = STRLEN (dst);
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if (CALL (impl, dst, src) != dst)
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{
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error (0, 0, "Wrong result in function %s %p %p", impl->name,
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@ -49,9 +82,9 @@ do_one_test (impl_t *impl, char *dst, const char *src)
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return;
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}
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if (strcmp (dst + k, src) != 0)
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if (STRCMP (dst + k, src) != 0)
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{
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error (0, 0, "Wrong result in function %s dst \"%s\" src \"%s\"",
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error (0, 0, "Wrong result in function %s dst \"%" sfmt "\" src \"%" sfmt "\"",
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impl->name, dst, src);
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ret = 1;
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return;
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@ -62,18 +95,18 @@ static void
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do_test (size_t align1, size_t align2, size_t len1, size_t len2, int max_char)
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{
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size_t i;
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char *s1, *s2;
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CHAR *s1, *s2;
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align1 &= 7;
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if (align1 + len1 >= page_size)
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if ((align1 + len1) * sizeof (CHAR) >= page_size)
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return;
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align2 &= 7;
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if (align2 + len1 + len2 >= page_size)
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if ((align2 + len1 + len2) * sizeof (CHAR) >= page_size)
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return;
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s1 = (char *) (buf1 + align1);
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s2 = (char *) (buf2 + align2);
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s1 = (CHAR *) (buf1) + align1;
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s2 = (CHAR *) (buf2) + align2;
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for (i = 0; i < len1; ++i)
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s1[i] = 32 + 23 * i % (max_char - 32);
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@ -93,9 +126,10 @@ static void
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do_random_tests (void)
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{
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size_t i, j, n, align1, align2, len1, len2;
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unsigned char *p1 = buf1 + page_size - 512;
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unsigned char *p2 = buf2 + page_size - 512;
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unsigned char *res;
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UCHAR *p1 = (UCHAR *) (buf1 + page_size) - 512;
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UCHAR *p2 = (UCHAR *) (buf2 + page_size) - 512;
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UCHAR *p3 = (UCHAR *) buf1;
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UCHAR *res;
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for (n = 0; n < ITERATIONS; n++)
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{
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@ -132,26 +166,26 @@ do_random_tests (void)
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p1[i] = 0;
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else
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{
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p1[i] = random () & 255;
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p1[i] = random () & BIG_CHAR;
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if (i >= align1 && i < len1 + align1 && !p1[i])
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p1[i] = (random () & 127) + 3;
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p1[i] = (random () & SMALL_CHAR) + 3;
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}
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}
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for (i = 0; i < len2; i++)
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{
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buf1[i] = random () & 255;
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if (!buf1[i])
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buf1[i] = (random () & 127) + 3;
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p3[i] = random () & BIG_CHAR;
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if (!p3[i])
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p3[i] = (random () & SMALL_CHAR) + 3;
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}
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buf1[len2] = 0;
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p3[len2] = 0;
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FOR_EACH_IMPL (impl, 1)
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{
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memset (p2 - 64, '\1', align2 + 64);
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memset (p2 + align2 + len2 + 1, '\1', 512 - align2 - len2 - 1);
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memcpy (p2 + align2, buf1, len2 + 1);
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res = (unsigned char *) CALL (impl, (char *) (p2 + align2),
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(char *) (p1 + align1));
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MEMSET (p2 - 64, '\1', align2 + 64);
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MEMSET (p2 + align2 + len2 + 1, '\1', 512 - align2 - len2 - 1);
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MEMCPY (p2 + align2, p3, len2 + 1);
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res = (UCHAR *) CALL (impl, (CHAR *) (p2 + align2),
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(CHAR *) (p1 + align1));
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if (res != p2 + align2)
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{
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error (0, 0, "Iteration %zd - wrong result in function %s (%zd, %zd, %zd %zd) %p != %p",
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@ -169,7 +203,7 @@ do_random_tests (void)
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break;
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}
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}
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if (memcmp (p2 + align2, buf1, len2))
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if (MEMCMP (p2 + align2, p3, len2))
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{
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error (0, 0, "Iteration %zd - garbage in string before, %s (%zd, %zd, %zd, %zd)",
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n, impl->name, align1, align2, len1, len2);
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@ -185,7 +219,7 @@ do_random_tests (void)
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break;
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}
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}
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if (memcmp (p1 + align1, p2 + align2 + len2, len1 + 1))
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if (MEMCMP (p1 + align1, p2 + align2 + len2, len1 + 1))
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{
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error (0, 0, "Iteration %zd - different strings, %s (%zd, %zd, %zd, %zd)",
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n, impl->name, align1, align2, len1, len2);
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@ -209,26 +243,26 @@ test_main (void)
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for (i = 0; i < 16; ++i)
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{
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do_test (0, 0, i, i, 127);
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do_test (0, 0, i, i, 255);
|
||||
do_test (0, i, i, i, 127);
|
||||
do_test (i, 0, i, i, 255);
|
||||
do_test (0, 0, i, i, SMALL_CHAR);
|
||||
do_test (0, 0, i, i, BIG_CHAR);
|
||||
do_test (0, i, i, i, SMALL_CHAR);
|
||||
do_test (i, 0, i, i, BIG_CHAR);
|
||||
}
|
||||
|
||||
for (i = 1; i < 8; ++i)
|
||||
{
|
||||
do_test (0, 0, 8 << i, 8 << i, 127);
|
||||
do_test (8 - i, 2 * i, 8 << i, 8 << i, 127);
|
||||
do_test (0, 0, 8 << i, 2 << i, 127);
|
||||
do_test (8 - i, 2 * i, 8 << i, 2 << i, 127);
|
||||
do_test (0, 0, 8 << i, 8 << i, SMALL_CHAR);
|
||||
do_test (8 - i, 2 * i, 8 << i, 8 << i, SMALL_CHAR);
|
||||
do_test (0, 0, 8 << i, 2 << i, SMALL_CHAR);
|
||||
do_test (8 - i, 2 * i, 8 << i, 2 << i, SMALL_CHAR);
|
||||
}
|
||||
|
||||
for (i = 1; i < 8; ++i)
|
||||
{
|
||||
do_test (i, 2 * i, 8 << i, 1, 127);
|
||||
do_test (2 * i, i, 8 << i, 1, 255);
|
||||
do_test (i, i, 8 << i, 10, 127);
|
||||
do_test (i, i, 8 << i, 10, 255);
|
||||
do_test (i, 2 * i, 8 << i, 1, SMALL_CHAR);
|
||||
do_test (2 * i, i, 8 << i, 1, BIG_CHAR);
|
||||
do_test (i, i, 8 << i, 10, SMALL_CHAR);
|
||||
do_test (i, i, 8 << i, 10, BIG_CHAR);
|
||||
}
|
||||
|
||||
do_random_tests ();
|
||||
|
||||
@ -4,7 +4,8 @@ sysdep_routines += strlen strlen-vx strlen-c \
|
||||
strcpy strcpy-vx \
|
||||
stpcpy stpcpy-vx stpcpy-c \
|
||||
strncpy strncpy-vx \
|
||||
stpncpy stpncpy-vx stpncpy-c
|
||||
stpncpy stpncpy-vx stpncpy-c \
|
||||
strcat strcat-vx strcat-c
|
||||
endif
|
||||
|
||||
ifeq ($(subdir),wcsmbs)
|
||||
@ -13,5 +14,6 @@ sysdep_routines += wcslen wcslen-vx wcslen-c \
|
||||
wcscpy wcscpy-vx wcscpy-c \
|
||||
wcpcpy wcpcpy-vx wcpcpy-c \
|
||||
wcsncpy wcsncpy-vx wcsncpy-c \
|
||||
wcpncpy wcpncpy-vx wcpncpy-c
|
||||
wcpncpy wcpncpy-vx wcpncpy-c \
|
||||
wcscat wcscat-vx wcscat-c
|
||||
endif
|
||||
|
||||
@ -97,6 +97,9 @@ __libc_ifunc_impl_list (const char *name, struct libc_ifunc_impl *array,
|
||||
IFUNC_VX_IMPL (stpncpy);
|
||||
IFUNC_VX_IMPL (wcpncpy);
|
||||
|
||||
IFUNC_VX_IMPL (strcat);
|
||||
IFUNC_VX_IMPL (wcscat);
|
||||
|
||||
#endif /* HAVE_S390_VX_ASM_SUPPORT */
|
||||
|
||||
return i;
|
||||
|
||||
28
sysdeps/s390/multiarch/strcat-c.c
Normal file
28
sysdeps/s390/multiarch/strcat-c.c
Normal file
@ -0,0 +1,28 @@
|
||||
/* Default strcat implementation for S/390.
|
||||
Copyright (C) 2015 Free Software Foundation, Inc.
|
||||
This file is part of the GNU C Library.
|
||||
|
||||
The GNU C Library is free software; you can redistribute it and/or
|
||||
modify it under the terms of the GNU Lesser General Public
|
||||
License as published by the Free Software Foundation; either
|
||||
version 2.1 of the License, or (at your option) any later version.
|
||||
|
||||
The GNU C Library is distributed in the hope that it will be useful,
|
||||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
Lesser General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU Lesser General Public
|
||||
License along with the GNU C Library; if not, see
|
||||
<http://www.gnu.org/licenses/>. */
|
||||
|
||||
#if defined HAVE_S390_VX_ASM_SUPPORT && IS_IN (libc)
|
||||
# define STRCAT __strcat_c
|
||||
# ifdef SHARED
|
||||
# undef libc_hidden_builtin_def
|
||||
# define libc_hidden_builtin_def(name) \
|
||||
__hidden_ver1 (__strcat_c, __GI_strcat, __strcat_c);
|
||||
# endif /* SHARED */
|
||||
|
||||
# include <string/strcat.c>
|
||||
#endif /* HAVE_S390_VX_ASM_SUPPORT && IS_IN (libc) */
|
||||
161
sysdeps/s390/multiarch/strcat-vx.S
Normal file
161
sysdeps/s390/multiarch/strcat-vx.S
Normal file
@ -0,0 +1,161 @@
|
||||
/* Vector optimized 32/64 bit S/390 version of strcat.
|
||||
Copyright (C) 2015 Free Software Foundation, Inc.
|
||||
This file is part of the GNU C Library.
|
||||
|
||||
The GNU C Library is free software; you can redistribute it and/or
|
||||
modify it under the terms of the GNU Lesser General Public
|
||||
License as published by the Free Software Foundation; either
|
||||
version 2.1 of the License, or (at your option) any later version.
|
||||
|
||||
The GNU C Library is distributed in the hope that it will be useful,
|
||||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
Lesser General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU Lesser General Public
|
||||
License along with the GNU C Library; if not, see
|
||||
<http://www.gnu.org/licenses/>. */
|
||||
|
||||
#if defined HAVE_S390_VX_ASM_SUPPORT && IS_IN (libc)
|
||||
|
||||
# include "sysdep.h"
|
||||
# include "asm-syntax.h"
|
||||
|
||||
.text
|
||||
|
||||
/* char * strcat (const char *dest, const char *src)
|
||||
Concatenate two strings.
|
||||
|
||||
Register usage:
|
||||
-r0=saved dest pointer for return
|
||||
-r1=tmp
|
||||
-r2=dest
|
||||
-r3=src
|
||||
-r4=tmp
|
||||
-r5=current_len
|
||||
-v16=part of src
|
||||
-v17=index of zero
|
||||
-v18=part of src
|
||||
*/
|
||||
ENTRY(__strcat_vx)
|
||||
.machine "z13"
|
||||
.machinemode "zarch_nohighgprs"
|
||||
|
||||
lgr %r0,%r2 /* Save destination pointer for return. */
|
||||
|
||||
/* STRLEN
|
||||
r1 = loaded bytes (tmp)
|
||||
r4 = zero byte index (tmp)
|
||||
r2 = dst
|
||||
*/
|
||||
vlbb %v16,0(%r2),6 /* Load s until next 4k-byte boundary. */
|
||||
lcbb %r1,0(%r2),6 /* Get bytes to 4k-byte boundary or 16. */
|
||||
|
||||
vfenezb %v16,%v16,%v16 /* Find element not equal with zero search. */
|
||||
vlgvb %r5,%v16,7 /* Load zero index or 16 if not found. */
|
||||
clrjl %r5,%r1,.Llen_end /* Found zero within loaded bytes, end. */
|
||||
|
||||
/* Align s to 16 byte. */
|
||||
risbgn %r1,%r2,60,128+63,0 /* %r3 = bits 60-63 of %r2 'and' 15. */
|
||||
lghi %r5,16 /* current_len = 16. */
|
||||
slr %r5,%r1 /* Compute bytes to 16bytes boundary. */
|
||||
|
||||
/* Find zero in 16byte aligned loop. */
|
||||
.Llen_loop:
|
||||
vl %v16,0(%r5,%r2) /* Load s. */
|
||||
vfenezbs %v16,%v16,%v16 /* Find element not equal with zero search. */
|
||||
je .Llen_found /* Jump away if zero was found. */
|
||||
vl %v16,16(%r5,%r2)
|
||||
vfenezbs %v16,%v16,%v16
|
||||
je .Llen_found16
|
||||
vl %v16,32(%r5,%r2)
|
||||
vfenezbs %v16,%v16,%v16
|
||||
je .Llen_found32
|
||||
vl %v16,48(%r5,%r2)
|
||||
vfenezbs %v16,%v16,%v16
|
||||
je .Llen_found48
|
||||
|
||||
aghi %r5,64
|
||||
j .Llen_loop /* No zero -> loop. */
|
||||
|
||||
.Llen_found48:
|
||||
aghi %r5,16
|
||||
.Llen_found32:
|
||||
aghi %r5,16
|
||||
.Llen_found16:
|
||||
aghi %r5,16
|
||||
.Llen_found:
|
||||
vlgvb %r4,%v16,7 /* Load byte index of zero. */
|
||||
algr %r5,%r4
|
||||
|
||||
.Llen_end:
|
||||
/* STRCPY
|
||||
%r1 = loaded bytes (tmp)
|
||||
%r4 = zero byte index (tmp)
|
||||
%r3 = curr src pointer
|
||||
%r2 = curr dst pointer
|
||||
*/
|
||||
la %r2,0(%r5,%r2) /* strcpy at end of dst-string. */
|
||||
|
||||
vlbb %v16,0(%r3),6 /* Load s until next 4k-byte boundary. */
|
||||
lcbb %r1,0(%r3),6 /* Get bytes to 4k-byte boundary or 16. */
|
||||
|
||||
vfenezb %v17,%v16,%v16 /* Find element not equal with zero search. */
|
||||
vlgvb %r5,%v17,7 /* Load zero index or 16 if not found. */
|
||||
clrjl %r5,%r1,.Lcpy_found_align /* If found zero within loaded bytes,
|
||||
copy bytes before and return. */
|
||||
|
||||
/* Align s to 16 byte. */
|
||||
risbgn %r4,%r3,60,128+63,0 /* %r3 = bits 60-63 of %r2 'and' 15. */
|
||||
lghi %r5,15 /* current_len = 15. */
|
||||
slr %r5,%r4 /* Compute highest index to 16byte boundary. */
|
||||
|
||||
vstl %v16,%r5,0(%r2) /* Copy loaded characters - no zero. */
|
||||
ahi %r5,1 /* Start loop at next character. */
|
||||
|
||||
/* Find zero in 16byte aligned loop. */
|
||||
.Lcpy_loop:
|
||||
vl %v16,0(%r5,%r3) /* Load s. */
|
||||
vfenezbs %v17,%v16,%v16 /* Find element not equal with zero search. */
|
||||
je .Lcpy_found_v16_0 /* Jump away if zero was found. */
|
||||
vl %v18,16(%r5,%r3)/* Load next part of s. */
|
||||
vst %v16,0(%r5,%r2) /* Store previous part without zero to dst. */
|
||||
vfenezbs %v17,%v18,%v18
|
||||
je .Lcpy_found_v18_16
|
||||
vl %v16,32(%r5,%r3)
|
||||
vst %v18,16(%r5,%r2)
|
||||
vfenezbs %v17,%v16,%v16
|
||||
je .Lcpy_found_v16_32
|
||||
vl %v18,48(%r5,%r3)
|
||||
vst %v16,32(%r5,%r2)
|
||||
vfenezbs %v17,%v18,%v18
|
||||
je .Lcpy_found_v18_48
|
||||
vst %v18,48(%r5,%r2)
|
||||
|
||||
aghi %r5,64
|
||||
j .Lcpy_loop /* No zero -> loop. */
|
||||
|
||||
.Lcpy_found_v16_32:
|
||||
aghi %r5,32
|
||||
.Lcpy_found_v16_0:
|
||||
la %r4,0(%r5,%r2)
|
||||
vlgvb %r1,%v17,7 /* Load byte index of zero. */
|
||||
vstl %v16,%r1,0(%r4) /* Copy characters including zero. */
|
||||
lgr %r2,%r0 /* Load saved dest-ptr. */
|
||||
br %r14
|
||||
|
||||
.Lcpy_found_v18_48:
|
||||
aghi %r5,32
|
||||
.Lcpy_found_v18_16:
|
||||
la %r4,16(%r5,%r2)
|
||||
vlgvb %r1,%v17,7 /* Load byte index of zero. */
|
||||
vstl %v18,%r1,0(%r4) /* Copy characters including zero. */
|
||||
lgr %r2,%r0 /* Load saved dest-ptr. */
|
||||
br %r14
|
||||
|
||||
.Lcpy_found_align:
|
||||
vstl %v16,%r5,0(%r2) /* Copy characters including zero. */
|
||||
lgr %r2,%r0 /* Load saved dest-ptr. */
|
||||
br %r14
|
||||
END(__strcat_vx)
|
||||
#endif /* HAVE_S390_VX_ASM_SUPPORT && IS_IN (libc) */
|
||||
27
sysdeps/s390/multiarch/strcat.c
Normal file
27
sysdeps/s390/multiarch/strcat.c
Normal file
@ -0,0 +1,27 @@
|
||||
/* Multiple versions of strcat.
|
||||
Copyright (C) 2015 Free Software Foundation, Inc.
|
||||
This file is part of the GNU C Library.
|
||||
|
||||
The GNU C Library is free software; you can redistribute it and/or
|
||||
modify it under the terms of the GNU Lesser General Public
|
||||
License as published by the Free Software Foundation; either
|
||||
version 2.1 of the License, or (at your option) any later version.
|
||||
|
||||
The GNU C Library is distributed in the hope that it will be useful,
|
||||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
Lesser General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU Lesser General Public
|
||||
License along with the GNU C Library; if not, see
|
||||
<http://www.gnu.org/licenses/>. */
|
||||
|
||||
#if defined HAVE_S390_VX_ASM_SUPPORT && IS_IN (libc)
|
||||
# include <string.h>
|
||||
# include <ifunc-resolve.h>
|
||||
|
||||
s390_vx_libc_ifunc2 (__strcat, strcat)
|
||||
|
||||
#else
|
||||
# include <string/strcat.c>
|
||||
#endif /* !(defined HAVE_S390_VX_ASM_SUPPORT && IS_IN (libc)) */
|
||||
25
sysdeps/s390/multiarch/wcscat-c.c
Normal file
25
sysdeps/s390/multiarch/wcscat-c.c
Normal file
@ -0,0 +1,25 @@
|
||||
/* Default wcscat implementation for S/390.
|
||||
Copyright (C) 2015 Free Software Foundation, Inc.
|
||||
This file is part of the GNU C Library.
|
||||
|
||||
The GNU C Library is free software; you can redistribute it and/or
|
||||
modify it under the terms of the GNU Lesser General Public
|
||||
License as published by the Free Software Foundation; either
|
||||
version 2.1 of the License, or (at your option) any later version.
|
||||
|
||||
The GNU C Library is distributed in the hope that it will be useful,
|
||||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
Lesser General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU Lesser General Public
|
||||
License along with the GNU C Library; if not, see
|
||||
<http://www.gnu.org/licenses/>. */
|
||||
|
||||
#if defined HAVE_S390_VX_ASM_SUPPORT && IS_IN (libc)
|
||||
# define WCSCAT __wcscat_c
|
||||
|
||||
# include <wchar.h>
|
||||
extern __typeof (__wcscat) __wcscat_c;
|
||||
# include <wcsmbs/wcscat.c>
|
||||
#endif
|
||||
175
sysdeps/s390/multiarch/wcscat-vx.S
Normal file
175
sysdeps/s390/multiarch/wcscat-vx.S
Normal file
@ -0,0 +1,175 @@
|
||||
/* Vector optimized 32/64 bit S/390 version of wcscat.
|
||||
Copyright (C) 2015 Free Software Foundation, Inc.
|
||||
This file is part of the GNU C Library.
|
||||
|
||||
The GNU C Library is free software; you can redistribute it and/or
|
||||
modify it under the terms of the GNU Lesser General Public
|
||||
License as published by the Free Software Foundation; either
|
||||
version 2.1 of the License, or (at your option) any later version.
|
||||
|
||||
The GNU C Library is distributed in the hope that it will be useful,
|
||||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
Lesser General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU Lesser General Public
|
||||
License along with the GNU C Library; if not, see
|
||||
<http://www.gnu.org/licenses/>. */
|
||||
|
||||
#if defined HAVE_S390_VX_ASM_SUPPORT && IS_IN (libc)
|
||||
|
||||
# include "sysdep.h"
|
||||
# include "asm-syntax.h"
|
||||
|
||||
.text
|
||||
|
||||
/* wchar_t * wcscat (wchar_t *dest, const wchar_t *src)
|
||||
Concatenate two strings.
|
||||
|
||||
Register usage:
|
||||
-r0=saved dest pointer for return
|
||||
-r1=tmp
|
||||
-r2=dest
|
||||
-r3=src
|
||||
-r4=tmp
|
||||
-r5=current_len
|
||||
-v16=part of src
|
||||
-v17=index of zero
|
||||
-v18=part of src
|
||||
*/
|
||||
ENTRY(__wcscat_vx)
|
||||
.machine "z13"
|
||||
.machinemode "zarch_nohighgprs"
|
||||
|
||||
vlbb %v16,0(%r2),6 /* Load s until next 4k-byte boundary. */
|
||||
lcbb %r1,0(%r2),6 /* Get bytes to 4k-byte boundary or 16. */
|
||||
|
||||
/* __wcslen_c can handle non 4byte aligned pointers,
|
||||
but __wcscpy_c not. Thus if either src or dest is
|
||||
not 4byte aligned, use __wcscat_c. */
|
||||
tmll %r2,3 /* Test if s is 4-byte aligned? */
|
||||
jne .Lfallback /* And use common-code variant if not. */
|
||||
tmll %r3,3 /* Test if src is 4-byte aligned? */
|
||||
jne .Lfallback /* And use common-code variant if not. */
|
||||
|
||||
lgr %r0,%r2 /* Save destination pointer for return. */
|
||||
|
||||
/* WCSLEN
|
||||
r1 = loaded bytes (tmp)
|
||||
r4 = zero byte index (tmp)
|
||||
r2 = dst
|
||||
*/
|
||||
|
||||
vfenezf %v16,%v16,%v16 /* Find element not equal with zero search. */
|
||||
vlgvb %r5,%v16,7 /* Load zero index or 16 if not found. */
|
||||
clrjl %r5,%r1,.Llen_end /* Found zero within loaded bytes, end. */
|
||||
|
||||
/* Align s to 16 byte. */
|
||||
risbgn %r1,%r2,60,128+63,0 /* %r3 = bits 60-63 of %r2 'and' 15. */
|
||||
lghi %r5,16 /* current_len = 16. */
|
||||
slr %r5,%r1 /* Compute bytes to 16bytes boundary. */
|
||||
|
||||
/* Find zero in 16byte aligned loop. */
|
||||
.Llen_loop:
|
||||
vl %v16,0(%r5,%r2) /* Load s. */
|
||||
vfenezfs %v16,%v16,%v16 /* Find element not equal with zero search. */
|
||||
je .Llen_found /* Jump away if zero was found. */
|
||||
vl %v16,16(%r5,%r2)
|
||||
vfenezfs %v16,%v16,%v16
|
||||
je .Llen_found16
|
||||
vl %v16,32(%r5,%r2)
|
||||
vfenezfs %v16,%v16,%v16
|
||||
je .Llen_found32
|
||||
vl %v16,48(%r5,%r2)
|
||||
vfenezfs %v16,%v16,%v16
|
||||
je .Llen_found48
|
||||
|
||||
aghi %r5,64
|
||||
j .Llen_loop /* No zero -> loop. */
|
||||
|
||||
.Llen_found48:
|
||||
aghi %r5,16
|
||||
.Llen_found32:
|
||||
aghi %r5,16
|
||||
.Llen_found16:
|
||||
aghi %r5,16
|
||||
.Llen_found:
|
||||
vlgvb %r4,%v16,7 /* Load byte index of zero. */
|
||||
algr %r5,%r4
|
||||
|
||||
.Llen_end:
|
||||
/* WCSCPY
|
||||
%r1 = loaded bytes (tmp)
|
||||
%r4 = zero byte index (tmp)
|
||||
%r3 = curr src pointer
|
||||
%r2 = curr dst pointer
|
||||
*/
|
||||
la %r2,0(%r5,%r2) /* strcpy at end of dst-string. */
|
||||
|
||||
vlbb %v16,0(%r3),6 /* Load s until next 4k-byte boundary. */
|
||||
lcbb %r1,0(%r3),6 /* Get bytes to 4k-byte boundary or 16. */
|
||||
|
||||
vfenezf %v17,%v16,%v16 /* Find element not equal with zero search. */
|
||||
vlgvb %r5,%v17,7 /* Load zero index or 16 if not found. */
|
||||
clrjl %r5,%r1,.Lcpy_found_align /* If found zero within loaded bytes,
|
||||
copy bytes before and return. */
|
||||
|
||||
/* Align s to 16 byte. */
|
||||
risbgn %r4,%r3,60,128+63,0 /* %r3 = bits 60-63 of %r2 'and' 15. */
|
||||
lghi %r5,15 /* current_len = 15. */
|
||||
slr %r5,%r4 /* Compute highest index to 16byte boundary. */
|
||||
|
||||
vstl %v16,%r5,0(%r2) /* Copy loaded characters - no zero. */
|
||||
ahi %r5,1 /* Start loop at next character. */
|
||||
|
||||
/* Find zero in 16byte aligned loop. */
|
||||
.Lcpy_loop:
|
||||
vl %v16,0(%r5,%r3) /* Load s. */
|
||||
vfenezfs %v17,%v16,%v16 /* Find element not equal with zero search. */
|
||||
je .Lcpy_found_v16_0 /* Jump away if zero was found. */
|
||||
vl %v18,16(%r5,%r3) /* Load next part of s. */
|
||||
vst %v16,0(%r5,%r2) /* Save previous part without zero to dst. */
|
||||
vfenezfs %v17,%v18,%v18
|
||||
je .Lcpy_found_v18_16
|
||||
vl %v16,32(%r5,%r3)
|
||||
vst %v18,16(%r5,%r2)
|
||||
vfenezfs %v17,%v16,%v16
|
||||
je .Lcpy_found_v16_32
|
||||
vl %v18,48(%r5,%r3)
|
||||
vst %v16,32(%r5,%r2)
|
||||
vfenezfs %v17,%v18,%v18
|
||||
je .Lcpy_found_v18_48
|
||||
vst %v18,48(%r5,%r2)
|
||||
|
||||
aghi %r5,64
|
||||
j .Lcpy_loop /* No zero -> loop. */
|
||||
|
||||
.Lcpy_found_v16_32:
|
||||
aghi %r5,32
|
||||
.Lcpy_found_v16_0:
|
||||
la %r4,0(%r5,%r2)
|
||||
vlgvb %r1,%v17,7 /* Load byte index of zero. */
|
||||
aghi %r1,3 /* Also copy remaining bytes of zero. */
|
||||
vstl %v16,%r1,0(%r4) /* Copy characters including zero. */
|
||||
lgr %r2,%r0 /* Load saved dest-ptr. */
|
||||
br %r14
|
||||
|
||||
.Lcpy_found_v18_48:
|
||||
aghi %r5,32
|
||||
.Lcpy_found_v18_16:
|
||||
la %r4,16(%r5,%r2)
|
||||
vlgvb %r1,%v17,7 /* Load byte index of zero. */
|
||||
aghi %r1,3 /* Also copy remaining bytes of zero. */
|
||||
vstl %v18,%r1,0(%r4) /* Copy characters including zero. */
|
||||
lgr %r2,%r0 /* Load saved dest-ptr. */
|
||||
br %r14
|
||||
|
||||
.Lcpy_found_align:
|
||||
aghi %r5,3 /* Also copy remaining bytes of found zero. */
|
||||
vstl %v16,%r5,0(%r2) /* Copy characters including zero. */
|
||||
lgr %r2,%r0 /* Load saved dest-ptr. */
|
||||
br %r14
|
||||
.Lfallback:
|
||||
jg __wcscat_c
|
||||
END(__wcscat_vx)
|
||||
#endif /* HAVE_S390_VX_ASM_SUPPORT && IS_IN (libc) */
|
||||
28
sysdeps/s390/multiarch/wcscat.c
Normal file
28
sysdeps/s390/multiarch/wcscat.c
Normal file
@ -0,0 +1,28 @@
|
||||
/* Multiple versions of wcscat.
|
||||
Copyright (C) 2015 Free Software Foundation, Inc.
|
||||
This file is part of the GNU C Library.
|
||||
|
||||
The GNU C Library is free software; you can redistribute it and/or
|
||||
modify it under the terms of the GNU Lesser General Public
|
||||
License as published by the Free Software Foundation; either
|
||||
version 2.1 of the License, or (at your option) any later version.
|
||||
|
||||
The GNU C Library is distributed in the hope that it will be useful,
|
||||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
Lesser General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU Lesser General Public
|
||||
License along with the GNU C Library; if not, see
|
||||
<http://www.gnu.org/licenses/>. */
|
||||
|
||||
#if defined HAVE_S390_VX_ASM_SUPPORT && IS_IN (libc)
|
||||
# include <wchar.h>
|
||||
# include <ifunc-resolve.h>
|
||||
|
||||
s390_vx_libc_ifunc (__wcscat)
|
||||
weak_alias (__wcscat, wcscat)
|
||||
|
||||
#else
|
||||
# include <wcsmbs/wcscat.c>
|
||||
#endif /* !(defined HAVE_S390_VX_ASM_SUPPORT && IS_IN (libc)) */
|
||||
@ -43,7 +43,7 @@ routines := wcscat wcschr wcscmp wcscpy wcscspn wcsdup wcslen wcsncat \
|
||||
mbrtoc16 c16rtomb
|
||||
|
||||
strop-tests := wcscmp wcsncmp wmemcmp wcslen wcschr wcsrchr wcscpy wcsnlen \
|
||||
wcpcpy wcsncpy wcpncpy
|
||||
wcpcpy wcsncpy wcpncpy wcscat
|
||||
tests := tst-wcstof wcsmbs-tst1 tst-wcsnlen tst-btowc tst-mbrtowc \
|
||||
tst-wcrtomb tst-wcpncpy tst-mbsrtowcs tst-wchar-h tst-mbrtowc2 \
|
||||
tst-c16c32-1 wcsatcliff $(addprefix test-,$(strop-tests))
|
||||
|
||||
20
wcsmbs/test-wcscat.c
Normal file
20
wcsmbs/test-wcscat.c
Normal file
@ -0,0 +1,20 @@
|
||||
/* Test wcscat functions.
|
||||
Copyright (C) 2015 Free Software Foundation, Inc.
|
||||
This file is part of the GNU C Library.
|
||||
|
||||
The GNU C Library is free software; you can redistribute it and/or
|
||||
modify it under the terms of the GNU Lesser General Public
|
||||
License as published by the Free Software Foundation; either
|
||||
version 2.1 of the License, or (at your option) any later version.
|
||||
|
||||
The GNU C Library is distributed in the hope that it will be useful,
|
||||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
Lesser General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU Lesser General Public
|
||||
License along with the GNU C Library; if not, see
|
||||
<http://www.gnu.org/licenses/>. */
|
||||
|
||||
#define WIDE 1
|
||||
#include "../string/test-strcat.c"
|
||||
@ -18,6 +18,9 @@
|
||||
|
||||
#include <wchar.h>
|
||||
|
||||
#ifdef WCSCAT
|
||||
# define __wcscat WCSCAT
|
||||
#endif
|
||||
|
||||
/* Append SRC on the end of DEST. */
|
||||
wchar_t *
|
||||
@ -47,4 +50,6 @@ __wcscat (dest, src)
|
||||
|
||||
return dest;
|
||||
}
|
||||
#ifndef WCSCAT
|
||||
weak_alias (__wcscat, wcscat)
|
||||
#endif
|
||||
|
||||
Loading…
Reference in New Issue
Block a user